JPH06185508A - Positioning method for fellow member - Google Patents

Abstract

PURPOSE:To facilitate positioning and fixing of fellow members such as a rack and a bed. CONSTITUTION:A pin hole 11 is machined in a bed 1, a straight pin 12 is driven into the pin hole, a filler charging hole 13 larger than the pin 12 is drilled in a rack 2, the rack 2 is built on the bed 1 to insert the pin 12 into the filler charging hole 13, and a filler 16 is poured into a clearance between the pin 12 and an internal surface of the filler charging hole 13 and solidified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of positioning members in a machine, equipment or the like.

[0002]

2. Description of the Related Art In machine tools such as horizontal boring machines and machining centers, racks and beds of feed drive systems,
There are some places where the members must be accurately positioned and fixed. Further, such a joint portion is required to have accurate positioning accuracy and high reproducibility of relative position accuracy due to disassembly and reassembly.

Conventionally, such a positioning and coupling of members is performed by adjusting the relative positional relationship between the members to a predetermined accuracy, then fastening the members with a fastening bolt, and then interlocking the members. A taper pin is struck and fixed between the members so that the displacement does not occur due to the external force acting on.

Specifically, as shown in FIG. 8, after assembling a rack 2 on a bed 1 of a machine tool, a drill hole is drilled by a drilling machine 3 over both the rack 2 and the bed 1, After that, as shown in FIG. 9, a taper reaming process is performed to form a taper hole 4, and a taper pin 5 is driven therein.

[0005]

However, in a machine tool such as a horizontal boring machine or a machining center, there are many combinations of racks and beds, so many holes are drilled.
There has been a problem that the drilling machine 3 has to be exchanged many times, which requires a lot of work.

Further, in taper reaming, due to the precision control of the tool, the machining conditions, and the like, a defective contact with the taper pin of the machining hole may occur. Therefore, the machining requires a great deal of attention and time, and attention was paid. However, since it is a manual work, it cannot be denied that the performance is deteriorated due to a processing error.

Further, since it is a cutting process, there is a problem that the working environment is deteriorated due to scattering of cutting chips and the like.

[0008]

In order to solve the above-mentioned problems, in the present invention, a pin hole is formed in one of the members to be positioned relative to each other, a pin is driven therein, and a hole larger than the pin is formed in the other member. Is processed, and the pin is inserted into the hole by combining the members, and the members are positioned by pouring a filler between the pin and the inner peripheral surface of the hole to solidify, and mutual The holes are formed in both of the members to be positioned, and the fillers are poured into the holes to be solidified to form the pins so that the members are positioned with respect to each other.

[0009]

According to the first method, since the filler fills the gap and the pin fits into the hole of one member and is integrated with the other member, accurate positioning can be performed, and by the divided reassembly. No misalignment occurs.

According to the second method, by using a filler having a sufficient strength as the filler, the solidified filler itself serves as a pin, which enables accurate positioning and division reassembly. Positioning at the time is also possible.

In any of the methods, as a filler, when a load such as a cutting force is applied between the members, the filler is mechanically supported so as to receive the force and not cause relative displacement of the members. Those with strength are adopted.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a method for positioning members according to the present invention will be described with reference to the drawings. Here, positioning and fixing of a rack such as a horizontal boring machine and a bed will be taken as an example.

As shown in FIGS. 1, 3 and 4, a pin hole 11 is formed at a position to be positioned on the bed 1 which is one member. The straight pin 12 is detachably fitted into the pin hole 11. The bed 1 is of course formed with a screw hole 12 into which a bolt for fixing the rack 2 is screwed.

On the other hand, a filler filling hole 13 having an inner diameter larger than the diameter of the straight pin 12 is formed at a position corresponding to the pin hole 11 in the rack 2 which is positioned and combined on the bed 1. The rack 2 also has a bolt through hole 14 corresponding to the screw hole 12.

Therefore, the rack 2 is positioned on the bed 1, and the bolt 15 is inserted into the screw hole 12 through the bolt through hole 14.
With the screw tightened, the straight pin 12 is inserted into the filler filling hole 13 with a gap between the straight pin 12 and the inner peripheral surface.

In this state, the filler 16 is injected and filled in the gap as shown in FIG. The filler 16 is a fluid in which a base material and a curing agent are mixed, and is solidified by hardening with time, so that the pin 1
It exhibits compression resistance between 2 and the inner peripheral surface of the hole.

Here, as the filler 16, a sliding surface anti-wear agent widely used in general machine tools and the like is used, but relative positioning and load between members may be changed depending on the applied machine, structure and performance. It is only necessary to select one that meets the purpose of preventing a relative shift with respect to.

Specifically, an epoxy resin-based sliding surface anti-wear agent called "MOGLEICE" or "SKC" under the trade name was used.

The straight pin 12 and the rack 2 are integrated as the filler 16 is hardened with time.

The filler 16 has a sufficient mechanical performance against a load such as cutting applied between the members. When the displacement with respect to the load is examined, the mechanical strength is the same as that of the taper pin system and the stable accuracy is obtained. was gotten.

When the rack 2 is disassembled from the bed 1, the straight pins 12 are integrated in a state of being positioned on the rack 2 side. Therefore, when the rack 2 is reassembled, the straight pins 12 are simply fitted into the pin holes 11. , The rack 2 can be accurately positioned.

By injecting the release agent on the surface of the straight pin 12 before injecting the filler 16,
The straight pin 12 may be left on the bed 1 side when the rack 2 and the bed 1 are disassembled.

As another embodiment, it is conceivable that a spring pin 17 is adopted as a pin corresponding to a core metal as shown in FIG. In the case of the straight pin 12, it is necessary to process the pin hole 12 into which it is fitted with a certain degree of accuracy, but in the case of the spring pin 17, the pin hole 1
8 may also be a rough drilled hole, and the processing time can be halved.

When sufficient strength can be obtained with the filler alone, as shown in FIG. 7, pin holes 19 and 20 are provided across the rack 2 and the bed 1, and the filler 21 is filled therein. You may make it solidify. Solidified filler 2
1 functions as a pin. A release agent is applied to the inner surface of the pin hole 20 on the bed 1 side.

When the rack 2 is disassembled from the bed 1, the pin 21 made of the filler remains on the rack 2 side, and when reassembling, the pin 21 can be positioned by fitting it into the hole 20.

The present invention is not limited to the positioning of the rack and the bed as described above, but the positioning of the drive gear box in the ball screw system, the positioning of the automatic pallet changer, the positioning of the rotary table, the rotary indexing disk, and other general machines. It can be applied to the positioning of structures that require maintaining a similar relative positional relationship with high accuracy.
Furthermore, by using a heat-resistant filler, it can be applied to the positioning of the casing and the upper lid of the turbine, compressor, etc.

[0027]

According to the method of positioning members according to the present invention, the actual product matching process is eliminated, and the members previously processed into individual members are combined to inject and solidify the filler between the pin and the hole. As a result, work efficiency is greatly improved.

Further, since the reaming of the taper hole which requires high precision is not required, the work efficiency is improved also in this aspect, and there is a problem such as a positional deviation due to a contact failure of the taper pin hole at the time of actual product matching processing. Can be resolved, and not only that
Stable mechanical strength can be obtained because of good adhesion between the filler, the pin and the member.

Furthermore, after the filler is poured into the holes extending between the members and solidified, the filler itself is used as a pin, so that the pin used as the core bar is not required.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a method according to an embodiment of the present invention.

FIG. 2 is a schematic plan view of a method according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view taken along a side surface in a positioning state according to an embodiment.

FIG. 4 is a sectional view taken along the line AA.

5 is a partially enlarged view of FIG.

FIG. 6 is a sectional view illustrating another embodiment.

FIG. 7 is a sectional view illustrating another embodiment.

FIG. 8 is a processing explanatory view of a conventional positioning means.

9A and 9B are a cross-sectional view illustrating a conventional positioning method and an enlarged cross-sectional view thereof.

[Explanation of symbols]

 1 bed 2 rack 11 pin hole 12 straight pin 13 filler filling hole 14 bolt through hole 15 bolt 16 filler 17 spring pin 18 pin hole 21 filler

Claims (2)

[Claims] 1. A pin hole is formed in one of the members to be positioned with respect to each other, a pin is driven therein, a hole larger than the pin is formed in the other member, and the members are combined to form the pin in the hole. And a filler is poured between the pin and the inner peripheral surface of the hole to be solidified, and the members are positioned together. 2. A method of positioning members, wherein holes are formed in both members to be positioned with respect to each other, and a filler is poured into the holes to be solidified to form pins.